three-band EQ

A three-band EQ is a set of tone controls, typically covering bass, mids, and treble, built into a pedal.¹ It lets a player shape or refine the feel and character of the instrument's tone, as in overdrives and distortions where the EQ adds versatility without the drive effect taking over.²³ Designs may be passive, shaping tone with minimal signal loss and controls that behave like classic tube amp tone stacks, or fully active.⁴⁵ Some versions add features such as a sweepable midrange control.⁶